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Set comes on with e.h.t for 4 sec,then goes off B=142v

Philips mod 32pw9544/75 standard T.v.

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  • terunky Dec 05, 2007


    I got the same problem with the fujitsu plasmavision 42 tv.

    if i turn him on the led wil turn red and is flashing.

    we thought of dust, but no.

    what must i do?


    (and sorry for my bad inglish I am from holland)

  • Anonymous Jun 30, 2008

    This television is the Sharp 13k-M100 , similar symtoms, B+ reaches 169 then shutdown occurs. I have already replaced The horizontal output transistor and
    the power supply regulator, also soldered a couple dry joints however problem remains.



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The problem you described is a case of the shutdown circuit being activated. This is either due to an overcurrent or overvoltage condition within the circuirty of the TV set. This could be an open or shorted component in the High Voltage section of the TV, or an open or shorted component in the low voltage power supply section of the TV. In any case If I were troubleshooting this TV I would check the Horizontal out put transistor to see if it had shorted or opened at one of its junctions. I would also check to see if any of the voltage regulators had shorted or opened. I would also suggest that you check to see if you see any signs of burnt components (note the section).

If you do not have a background in Electronics, I would suggest that you take the TV to a qualified TV shop for repairs. This is because the work that needs to be done is not sinmple, and serious harm can result if you are not careful.

I wish you well on the repair of your TV.

Thank you,

Posted on Nov 26, 2007


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